1. The clinical effect of salazosulfapyridine (salazopyrin) in Crohn's disease;Anthonisen;Scand J Gastroenterol,1974
2. A controlled double-blind multicenter study of the effectiveness of 5-aminosalicylic acid in patients with Crohn's disease in remission;Arber;J Clin Gastroenterol,1995
3. Malignancies in rheumatoid arthritis patients treated with cyclosporin A;Arellano;Br J Rheumatol,1993
4. Methotrexate in Crohn's disease: Results of a double-blind, randomized, placebo-controlled trial;Arora;Hepatogastroenterology,1999
5. An experiment to determine the active therapeutic moiety of sulfasalazine;Azad-Kahn;Lancet,1977